Jack or last-holder



(No Model.) 2 Sheets-Sheet 1.

J. E. KIMBALL.

JACK OR LAST HOLDER.

Patented Feb. 28,1882.

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Patented Feb. 28,1882.

UNITED ST TES- PATENT OFFICE.

JOSEPH E. KIMBALL, OF MILFORD, ASSIGNOR T O HENRY S. JENKINS, TRUSTEE, OF BOSTON, MASSACHUSETTS- JACK OR LAST-HOLDER.

SPECIFICATION forming part of Letters Patent No. 254,221, dated February 28, 1882.

I Application filed December 23, 1881. (N model.)

To all whom it may concern:

Be it known that I, JOSEPH E. KtMBALL, of Milford, in the county of Worcester and State of Massachusetts, have invented an Improved Jack or Last-Holder, of which the fol-.

lowing is a full, clear, concise, and exact description, reference being bad to the accompanying drawings, in which- 7 Figure 1 is a side elevation, Fig. 2 a plan, Fig. 3 the other side elevation, and Fig. 4 a rear elevation, of one of my improved jacks.

My invention relates to improvements in a jack for holding a last while the shoe is in process of manufacture.

My invention consists in forming a socket in one end of the main lever, and in pivoting this main lever to a suppott that has pivoted to it a second lever which connects with the main lever, so that by moving this second lever the main lever is canted or turned on its 'l'ulcrum, as may be required.

The main lever A, provided with a handle,

I a, and a socket, a, for receiving the stem of the last, is pivoted to thesupport B by the pin a, passing through it and the upperpart of the support B. The hollow sleeve b of the support B fits over the end of the jackmod in the usual way. The long'arm of the lever A is bent, as shown in the drawings, andis provided with a slot, a at its outer end, to receive a pin on one arm, 6?, of the second lever, D, as fully described hereinafter.

The support B has fast to it an arm, b, having on its upper part a notched segmental flange, I1 and at its lower part a box, through which passes a shaft, d, of the lever d, which is rigidly connected to the arm (1 of the lever D by the set-screw d so that by moving the arm d the arm (Z will, be correspondingly moved. The arm d is provided with a springcatch, d, which litsthe notches in the segmental flange b of the arm I) and retains the arm (1 in the desired position. The arm d which is rigidly connected to the arm d by the shaft 01 and set'screw 01 must of course move when the arm 61 is moved.

To the end of the arm (1 is attached a pin, (1 which tits and works in the slot at in the main lever A, so that the motion of the second lever, D, will cause its arm d to act on the main lever A to cant or turn it on its fulcrum a.

The support B having its hollow sleeve I) placed over the end of the jack-rod, and the stem of the last being inserted in the socket a of the main lever A, the operator grasps the handle a with one hand and the arm d of the lever D with the other hand. With the finger of this hand he can pull the spring d from one notch'in the segmental flange b and movethe arm d until the spring d engages in anothernotch, thereby causing the arm 61 to move the lever A to an extent required to bring the shoe in any desired position. i

I claim as my invention I The combination of the lever A, socketed to receive the stem of the last, the support B, and the second lever,D, substantially as described.

JOSEPH E. KIMBALL. 

